Re: E34 540i Coolant

["David Orr" <orrs@xxxxxxxxxxxx>]

You can buy premixed coolant but yes you will have to drain the block, the
heater core,
and the radiator and lines. What you could do is drain the radiator and then
fill it with
antifreeze, run the engine for a while and then check the freeze level and
adjust as
necessary. The problem you will have if you drain the whole system is
getting all the
air out of it.

Good Luck,
Dave Orr

- ----- Original Message -----
From: "Tomas Perez" <tsperez@domain.elided>
To: <bmw-digest@domain.elided>
Sent: Friday, May 02, 2003 10:34 AM
Subject: E34 540i Coolant


> I replaced the radiator on my 1994 540i last weekend and since it was
> about 4 AM when I finished I put in regular water and no coolant when I
> was done with the work.  I now want to put in the 50-50 mixture of BMW
> coolant that is recommended.  My questions are 1) is the coolant sold as
> 50-50 or do I do the mixing myself?  2) How much do I need to purchase
> (gallons or quarts)? and 3) I can see how to drain the radiator but how
> do I drain the block?  (Each side?)?
>
>
>
> TIA,
>
> Tsp
>
> '94 540i
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